﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace DAL
{
    public class EbookManager
    {
        #region properties

        private static EbookManager _sInstance;
        private static readonly object SInstanceLocker = new object();

        #endregion

        public static EbookManager Instance
        {
            get
            {
                lock (SInstanceLocker)
                {
                    return _sInstance ?? (_sInstance = new EbookManager());
                }
            }
        }


    }
}
